/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Variables */
:root {
    --primary-color: #007bff; /* Blue for trust/tech */
    --secondary-color: #0056b3;
    --text-light: #f4f4f4;
    --bg-light: #f9f9f9;
}

/* Utility Classes */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 60px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #222;
}

.section-desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 40px auto;
    color: #666;
}

/* Navbar */
.navbar {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.navbar .logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    text-transform: uppercase;
}

.navbar .nav-links {
    list-style: none;
    display: flex;
}

.navbar .nav-links li {
    margin-left: 20px;
}

.navbar .nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: 0.3s;
}

.navbar .nav-links a:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1519389950473-47ba0277781c?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: 0.3s;
}

.primary-btn {
    background: var(--primary-color);
    color: #fff;
}

.primary-btn:hover {
    background: var(--secondary-color);
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.service-card {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
}

/* Contact Form */
.contact-container {
    text-align: center;
}

.contact-form {
    max-width: 600px;
    margin: 30px auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input, 
.contact-form select, 
.contact-form textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.contact-info {
    margin-top: 30px;
}

/* Footer */
footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .navbar .nav-links {
        display: none; /* Simple hide for mobile simplicity in this demo */
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
}